Standing desk



FIG. 1 is a front, top perspective view of a standing desk showing our new design;

FIG. 2 a front top perspective view with drawer open thereof;

FIG. 3 is a rear, top perspective view thereof;

FIG. 4 is a front, top, right perspective view thereof;

FIG. 5 is a front, top, right perspective view with drawer open thereof;

FIG. 6 is a front, top, left perspective view with drawer open thereof;

FIG. 7 is a rear, top, left perspective view thereof;

FIG. 8 is a right side view thereof; and,

FIG. 9 is a top, left perspective view.

The features shown in broken lines in the drawing figures form no part of the claimed design. 

CLAIM The ornamental design for a standing desk, as shown and described. 